Move deptree2dot to the support folder

Since deptree2dot and the perl requirement are completely optional, we
can move this tool to the support folder. This gives the user the option
of using it if they have perl installed, and means we do not have an
optional runtime dependency on perl.

Documentation for this tool has also been added to the support folder.

X-Gentoo-Bug: 600742
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=600742

NEWS.md

@@ -3,6 +3,12 @@
 This file will contain a list of notable changes for each release. Note
 the information in this file is in reverse order.
 
+## OpenRC-0.24
+
+Since the deptree2dot tool and the perl requirement are completely
+optional, the deptree2dot tool has been moved to the support directory.
+As a result, the MKTOOLS=yes/no switch has been removed from the makefiles.
+
 ## OpenRC-0.23
 
 The tmpfiles.d processing code, which was part of previous versions of

README.md

@@ -30,7 +30,6 @@ MKSELINUX=yes
 MKSTATICLIBS=no
 MKTERMCAP=ncurses
 MKTERMCAP=termcap
-MKTOOLS=yes
 PKG_PREFIX=/usr/pkg
 LOCAL_PREFIX=/usr/local
 PREFIX=/usr/local

src/Makefile

@@ -3,9 +3,5 @@
 
 SUBDIR=		test libeinfo librc rc
 
-ifeq (${MKTOOLS},yes)
-SUBDIR+= tools
-endif
-
 MK=		../mk
 include		${MK}/subdir.mk

src/tools/Makefile

@@ -1,5 +0,0 @@
-DIR=	${UPREFIX}/bin
-BIN=	deptree2dot
-
-MK=	../../mk
-include ${MK}/scripts.mk

support/deptree2dot/README.md

@@ -0,0 +1,11 @@
+# deptree2dot - Graph the OpenRC Dependency Tree
+
+This utility can be used to graph the OpenRC dependency tree. It
+requires perl5.x and converts the tree to a .dot file which can be
+processed by graphviz.
+
+Example usage:
+
+$ chmod +x deptree2dot
+$deptree2dot > deptree.dot
+$deptree2dot | dot -Tpng -o deptree.png